-er -ey -th a-a a-b a-t aaa aab aae aaf aah aar aat aay ab- aba abb abe abf abh abr abt aby aea aeb aee aef aeh aer aet aey af- afa afb afe aff afh afr aft afy aha ahb ahe ahf ahh ahr aht ahy ar- ara arb are arf arh arr art ary at- ata atb ate atf ath atr att ay- aya aye ayf ayh ayr ayt baa bab bae baf bah bar bat bay bba bbb bbe bbf bbh bbr bbt bby be- bea beb bee bef beh ber bet bey bfa bfb bfe bff bfh bfr bft bfy bha bhb bhe bhf bhh bhr bht bra brb bre brf brh brr brt bry bta btb bte btf bth btr btt bty by- bya bye byf byh byr byt eaa eab eae eaf eah ear eat eba ebb ebe ebf ebh ebr ebt eby eea eeb eee eef eer eet eey ef- efa efb efe eff efh efr eft eha ehb ehe ehf ehh ehr eht era erb ere erf erh err ert ery eta etb ete etf eth etr ett ety eya eye eyr eyt faa fab fae faf fah far fat fay fba fbb fbe fbf fbh fbr fbt fea feb fee fef feh fer fet fey ffa ffe fff ffh ffr fft ffy fha fhb fhe fhf fhh fhr fra frb fre frf frh frr frt fry fta ftb fte ftf fth ftr ftt fty fy- fya fyb fye haa hab hae haf hah har hat hay hba hbb hbe hbf hbh hbr hbt hby he- hea heb hee hef heh her het hey hfa hfb hfe hff hfh hfr hft hfy hha hhb hhe hhf hhh hhr hht hhy hr- hra hrb hre hrf hrh hrr hrt hta htb hte htf hth htr htt hty hy- hya hyb hye hyh hyr hyt hyy ra- raa rab rae raf rah rar rat ray rba rbb rbe rbf rbh rbr rbt re- rea reb ree ref reh rer ret rey rfa rfb rfe rff rfh rfr rft rh- rha rhb rhe rhf rhh rhr rht rra rrb rrf rrh rrr rrt rta rtb rte rtf rtr rtt rty ry- rya rye ryf ryr ryy taa tab tae taf tah tar tat tay tba tbb tbe tbf tbh tbr tbt te- tea teb tee tef teh ter tet tey tfa tfb tfe tff tfh tfr tft th- tha thb the thf thh thr tht thy tra trb tre trf trh trr trt try tta ttb tte ttf tth ttr ttt tty tya tye tyf tyr tyt yaa yab yae yaf yah yar yat yay ybe ybf ybr yby yea yeb yee yef yeh yer yet yey yfa yfe yff yfr yft yha yhe yht yra yre yrf yrt yta yte ytf yth ytr ytt yyb yye yyf yyt yyy